This is an example of codominance, in which both alleles for a trait are expressed in the offspring. Do not confuse this with incomplete dominance in which the alleles blend; otherwise, the roan would have been pink. By crossing a red bull and white cow, we get the genotype of RW for a roan. This will be the genotype of all offspring.
What happens if you cross an RW with an RW? You get RR, RW, RW, and WW; in other words, you get 1 red, 2 roan, and 1 white offspring.
The nurse assisting the health care provider should ask the
client to do a certain action which is perform the Valsalva maneuver. This is
an action being performed by which an individual moderately forces his or
herself into doing exhalation against a closed airway by having his or her
mouth the be closed with the nose shut and exhaling as if the person is blowing
a balloon.
